> ## Documentation Index
> Fetch the complete documentation index at: https://www.helius.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# getMaxRetransmitSlot

> Get the max slot seen from retransmit stage where a validator is currently retransmitting data shreds to help repair other nodes



## OpenAPI

````yaml openapi/rpc-http/getMaxRetransmitSlot.yaml POST /
openapi: 3.1.0
info:
  title: Solana RPC API
  version: 1.0.0
  description: >-
    Validator reliability API for retrieving the highest blockchain slot where
    this Solana node is actively retransmitting missing data fragments to other
    nodes.
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0.html
servers:
  - url: https://mainnet.helius-rpc.com
    description: Mainnet RPC endpoint
  - url: https://devnet.helius-rpc.com
    description: Devnet RPC endpoint
security: []
paths:
  /:
    post:
      tags:
        - RPC
      summary: getMaxRetransmitSlot
      description: >
        Retrieve the highest slot where this Solana validator is actively
        retransmitting blockchain data.

        This advanced diagnostic API exposes information about the validator's
        data repair mechanism,

        showing the maximum slot for which it's currently helping to recover and
        redistribute missing

        blockchain fragments to other nodes. Critical for validator operators
        monitoring network

        participation, data availability engineers ensuring blockchain
        resilience, and diagnostic

        tools tracking the effectiveness of Solana's turbine block propagation
        system in maintaining

        network-wide data integrity during periods of packet loss or network
        congestion.
      operationId: getMaxRetransmitSlot
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - jsonrpc
                - id
                - method
              properties:
                jsonrpc:
                  type: string
                  description: The JSON-RPC protocol version.
                  enum:
                    - '2.0'
                  example: '2.0'
                  default: '2.0'
                id:
                  type: string
                  description: A unique identifier for the request.
                  example: '1'
                  default: '1'
                method:
                  type: string
                  description: The name of the RPC method to invoke.
                  enum:
                    - getMaxRetransmitSlot
                  example: getMaxRetransmitSlot
                  default: getMaxRetransmitSlot
      responses:
        '200':
          description: Successfully retrieved the maximum retransmit slot.
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                    description: The JSON-RPC protocol version.
                    enum:
                      - '2.0'
                    example: '2.0'
                  id:
                    type: string
                    description: Identifier matching the request.
                    example: '1'
                  result:
                    type: integer
                    description: >-
                      Highest Solana slot number where this validator node is
                      currently retransmitting data shreds to help repair other
                      nodes.
                    example: 1234
        '400':
          description: Bad Request - Invalid request parameters or malformed request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                jsonrpc: '2.0'
                error:
                  code: -32602
                  message: Invalid params
                id: '1'
        '401':
          description: Unauthorized - Invalid or missing API key.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                jsonrpc: '2.0'
                error:
                  code: -32001
                  message: Unauthorized
                id: '1'
        '429':
          description: Too Many Requests - Rate limit exceeded.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                jsonrpc: '2.0'
                error:
                  code: -32005
                  message: Too many requests
                id: '1'
        '500':
          description: Internal Server Error - An error occurred on the server.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                jsonrpc: '2.0'
                error:
                  code: -32603
                  message: Internal error
                id: '1'
        '503':
          description: Service Unavailable - The service is temporarily unavailable.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                jsonrpc: '2.0'
                error:
                  code: -32002
                  message: Service unavailable
                id: '1'
        '504':
          description: Gateway Timeout - The request timed out.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                jsonrpc: '2.0'
                error:
                  code: -32003
                  message: Gateway timeout
                id: '1'
      security:
        - ApiKeyQuery: []
components:
  schemas:
    ErrorResponse:
      type: object
      properties:
        jsonrpc:
          type: string
          description: The JSON-RPC protocol version.
          enum:
            - '2.0'
          example: '2.0'
        error:
          type: object
          properties:
            code:
              type: integer
              description: The error code.
              example: -32602
            message:
              type: string
              description: The error message.
            data:
              type: object
              description: Additional data about the error.
        id:
          type: string
          description: Identifier matching the request.
          example: '1'
  securitySchemes:
    ApiKeyQuery:
      type: apiKey
      in: query
      name: api-key
      description: >-
        Your Helius API key. You can get one for free in the
        [dashboard](https://dashboard.helius.dev/api-keys).

````